fix(docs): change issue template

.github/ISSUE_TEMPLATE.md

@@ -1,7 +1,14 @@
-Before submitting the issue, take a look at the already existing solutions to:
+**IMPORTANT**: This repository's issues are reserved for feature requests and bug reports. Do not submit support requests here.
 
-- [x] `Cannot find module '...'` - your issue is related to not existing type definitions.
-- [x] Adding [sass support](https://github.com/mgechev/angular2-seed/wiki/Add-custom-Gulp-task).
-- [x] Adding [external styles](https://github.com/mgechev/angular2-seed/wiki/Add-an-external-styles).
-- [x] Configuring [SystemJS](https://github.com/mgechev/angular2-seed/issues/499).
-- If you are not sure your configuration is correct, please take a look at the documentation of [SystemJS](https://github.com/systemjs/systemjs/blob/master/docs/system-api.md), [typings](https://github.com/typings/typings/blob/master/README.md) and [gulp](https://github.com/gulpjs/gulp/blob/master/docs/README.md).
+
+**Steps to reproduce and a minimal demo of the problem**
+
+_What steps should we try in your demo to see the problem?_
+
+**Current behavior**
+
+
+**Expected/desired behavior**
+
+
+**Other information**